Clutch Master Cyliner Repair Info Needed

[HeyAndy]

Developed a floppy clutch pedal this afternoon. Cane anyone enlighten me on the following?

1. Is there a repair kit available?
2. If so, where can I get one?
3. Where can I get a replacement Master cylinder from
4. How Much?

[mtb]

HAD NEW CLUTCH MASTER CYLINDER FITTED BY LOCAL GARAGE 3 MONTHS AGO LUCAS GIRLING PART NO pmc133 (64066117) they had to use original rod as new one to long.COST FITTED £56.00
MTB

[CARL350i]

Rebuilt mine in '96' just found the receipt. Cost me £5.76 for a girling repair kit pt no. sp2102. It all depends on the condition of the piston and the bore.

I seem to remember it was the same as on a TR6

[skyrocketship]

Recently replaced both clutch cylinders on mine - cost about £90 for parts from Tower View - fitted by a mate in about 30 mins!

[HeyAndy]

Guys, thanks for the info. I ordered a repair kit costing £11.99 today will sort it out for the weekend.

[jchase]

Hey, this old thread was kinda usefull, but I noticed the wedgepages has the clutch master as a Rover GMC1015. My cylinder says Girling 754. !!

Now , my left knee is really beginning to hurt from the super hard clutch, and I want to make things easier with a different master cylinder, so can anyone tell me the piston diameters in the Girling 754 or Rover GMC1015 units? I am assuming a larger bore will require more travel and less pedal force...? Also would like to know if the 400SE has a different set-up as the one I drove seemed to have a lovely clutch pedal.

-Jim

[jchase]

Okay, scratch that last one, it might be .75A and apparently you go smaller on the master cylinder to reduce pedal force and increase travel. Girling masters apparently come in 0.625", 0.700" AND 0.750" diameters. I guess the pedal force ratios go with the square of the radius, which means 87% of original with 0.700, and 69% of original with the 0.625 force, maybe?

-Jim

[adam quantrill]

Hey Jim why not go the whole hog and get a Power Assisted Clutch?

When with your PAS setup you'll be sorted. My mate with the Alfa could do you a nice vinyl graphic to go on the driver's door, I thought a nice '70's style flower with "PAnSy Boi" underneath???

;^)

Nah but seriously I think you're right with the force proportional to area. I've got an old master cylinder in the barn, could easily go in there and measure the piston diameter.